You would add the CMS Content areas into the pages that you have created based on your template.
With Power CMS, you need to create a page based on the template.
then in the power CMS Admin, create the content area, find the developer notes code for the content, then add that developer notes code to your page. Adding the developer notes code to the page address the editable content to the page.
to edit the content at a later date, you log into the Power CMS admin, select the content area and make your changes. this will change the content t that displays on the page.